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Stock-Based Compensation (Details Textual) (USD $)
In Thousands, except Share data, unless otherwise specified
12 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2012
Stock-Based Compensation (Textual) [Abstract]      
Outstanding share awards earned and issued at greater than the target number of shares 150.00%    
Stock options [Member]
     
Stock-Based Compensation (Textual) [Abstract]      
Stock options, vesting period 10 years    
Restricted shares [Member] | Minimum [Member]
     
Stock-Based Compensation (Textual) [Abstract]      
Stock options, vesting period 1 year    
2007 Plan [Member]
     
Stock-Based Compensation (Textual) [Abstract]      
Stock options, vesting period 10 years    
Aggregate number of shares that may be awarded 600,000    
Performance period 3 years    
Stock options may be awarded 290,000    
Compensation expense related to performance and restricted shares awarded $ 1,572 $ 280 $ 892
Income tax benefits resulting of issuing common shares 228 18 59
Total unrecognized compensation cost related to performance and restricted shares awarded $ 1,992    
Period of recognized compensation cost 2 years    
2007 Plan [Member] | Maximum [Member]
     
Stock-Based Compensation (Textual) [Abstract]      
Common shares earned as percentage of initial target number shares awarded 150.00%    
2007 Plan [Member] | Minimum [Member]
     
Stock-Based Compensation (Textual) [Abstract]      
Ultimate number of common shares that may be earned 0